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  1. #1


    Member Since
    Sep 13, 2007
    Posts
    66
    Unevenly keyboard backlight
    Hello-

    I just bought a 17" MBP last week, and it wasn't until a day or two ago I discovered the keyboard backlight is unevenly lit. An area encompassing the F2, F3, F4, F5, F6, 3, 4, 5, E, R, and T keys is much less illuminated than the rest of the keyboard, and the 8, tab, enter and right shift keys are much brighter.

    Has anyone else encountered this?

    Thanks.

    -TM

  2. #2

    fleurya's Avatar
    Member Since
    Nov 18, 2006
    Location
    Anytown, USA
    Posts
    4,925
    Specs:
    27" iMac 2.7GHz Core i5, iPhone 4S, 3rd gen iPad
    Mine is similar. Since it's, I'm guessing, LED lights under there that don't cover the underside 100%, it's bound to happen. I don't need the backlighting, well, ever, I never got in a twist over it. It's nice to know it's there if I ever do though.

    If you think your might be excessive and you have a camera with good manual controls, take a pic and post it.
    "Give so much time to the improvement of yourself that you have no time to criticize others"

  3. #3

    yellow19man's Avatar
    Member Since
    Jul 06, 2007
    Posts
    163
    Specs:
    MBP SR 2.2Ghz 15.4" LED
    i just turned on my backlight and it seems very even to me. everything looks bright.

    if you have applecare, just go in and get it looked at since you paid for the warranty.

  4. #4


    Member Since
    Jul 14, 2007
    Location
    SF Bay Area, CA
    Posts
    589
    Specs:
    See Sig...
    Just tried it on my 17"... there's more light leakage around the outside keys, but the actual brightness is pretty even. I'm not sure how this thing is lit though... if it uses a few LEDs and lightpipes or LEDs under every key or every few keys or just what.
    MCCCXXXVII
    Notebook RAM Buyer's Guide- How much, what type, what brand, where to buy, etc.
    MBP: 17" WUXGA/2.4/4GB/160GB 7.2K
    G4: Heavily modified Dual 533 DA

  5. #5


    Member Since
    Sep 13, 2007
    Posts
    66
    My guess would be an EL panel behind them, but I can't be sure.

    Here's a picture taken with my cell phone of the keyboard at full brightness, poor quality photo, but you can see what I mean.

    http://www.comfx.com/tis/data/8361/IMAGE_00004.jpg

  6. #6


    Member Since
    Jul 14, 2007
    Location
    SF Bay Area, CA
    Posts
    589
    Specs:
    See Sig...
    i don't think it's a EL panel, personally. The light is not nearly diffuse enough, and imo it's too blue compared to the "white" EL panels I've seen.
    MCCCXXXVII
    Notebook RAM Buyer's Guide- How much, what type, what brand, where to buy, etc.
    MBP: 17" WUXGA/2.4/4GB/160GB 7.2K
    G4: Heavily modified Dual 533 DA

  7. #7

    christm's Avatar
    Member Since
    Dec 18, 2005
    Location
    Devon, England
    Posts
    2,288
    Specs:
    ibook g4, imac 2ghz c2d, mbp 2.4ghz c2d - 10.5.1
    my 15" lights are even. could just be the 17" models

  8. #8


    Member Since
    Jul 14, 2007
    Location
    SF Bay Area, CA
    Posts
    589
    Specs:
    See Sig...
    Took this a minute ago... I played with the exposure a bit to exaggerate the effect just a bit. It seems pretty even to me...
    MCCCXXXVII
    Notebook RAM Buyer's Guide- How much, what type, what brand, where to buy, etc.
    MBP: 17" WUXGA/2.4/4GB/160GB 7.2K
    G4: Heavily modified Dual 533 DA

  9. #9


    Member Since
    Sep 13, 2007
    Posts
    66
    I appreciate the replies. It looks like my backlight is defective.

    What should I do now? I don't want to exchange the whole unit as I've already put data on it, plus the LCD is perfect. Can they "repair" it? I have a feeling that will require a lengthy delay though.

  10. #10


    Member Since
    Sep 13, 2007
    Posts
    66
    Geeky1's post showed exactly how a keyboard backlight should look - perfect with no noticeable variations in light.

    Here's another photo of mine, this time with the contrast adjusted to show the dark void in the upper left portion of the keyboard.

    http://www.comfx.com/tis/data/8523/IMG_3305.jpg

    Maybe I'll go back to the store I got it at and get an exchange - it was only 8 days ago.

    -TM

  11. #11

    bobtomay's Avatar
    Member Since
    Dec 22, 2006
    Location
    Texas, where else?
    Posts
    26,455
    Specs:
    15" MBP '06 2.33 C2D 4GB 10.7; 13" MBA '14 1.8 i7 8GB 10.11; 21" iMac '13 2.9 i5 8GB 10.11; 6S
    Yours is not right Matrix - looks as if one of the lights is non-functioning - definitely would do an exchange or see if it is an easy/quick repair. You might call and talk to them / set up an appointment first - at least to find out if they'll fix or just replace your system for you.

    Couldn't deal with that myself - I am almost always using mine in a dark room.

    And once you get it working properly - If you use the keyboard backlight function often - you may find Lab Tick of use to you.
    I cannot be held responsible for the things that come out of my mouth.
    In the Windows world, most everything folks don't understand is called a virus.

  12. #12

    fleurya's Avatar
    Member Since
    Nov 18, 2006
    Location
    Anytown, USA
    Posts
    4,925
    Specs:
    27" iMac 2.7GHz Core i5, iPhone 4S, 3rd gen iPad
    Mine looks a lot like Matrix's. Geeky's looks great. Maybe I will take mine in when I have time. I just don't want to be out a computer for long.
    "Give so much time to the improvement of yourself that you have no time to criticize others"

  13. #13


    Member Since
    Jul 12, 2007
    Posts
    120
    it its that new they'll just replace it

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